nghttp2.org now hosts Lucid HTTP/2 server written in Erlang. The access endpoint is https://nghttp2.org:3456/. Currently it returns simple html content including request headers. It only speaks h2-14.

Since Erlang SSL module does not support AEAD cipher suites, Firefox nightly refuses to connect to this server. To workaround this, open about:config in Firefox and set network.http.spdy.enforce-tls-profile to false.